I have a 4.1 in 20cv and I just spend two hours trying to sharpen it on an india stone this one http://www.amazon.com/Norton-614636...F8&qid=1410038436&sr=8-1&keywords=india+stone I used it on a backpacking trip, batoned some wood and it left some small nicks in it. So it was pretty dull. I cant even get it to cut paper. Ive never had this problem with 1095, I can get 1095 shaving sharp and cutting phone book paper. So now im frustrated and pissed off I cant get this knife sharp. Its my favorite. Any help would be appreciated. Right now im thinking ill buy a ken onion work sharp and just convex it.